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118171POWER SYSTEM EVENTS06/09/2024 08:18:58 PM
Update - Non-credible contingency event - VIC region - 06/09/2024
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - VIC region - 06/09/2024
Refer AEMO Electricity Market Notice 118166
At 2005 hrs the Loy Yang PS No. 4 500 kV bus was returned to service.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
Update - Non-credible contingency event - VIC region - 06/09/2024
Refer AEMO Electricity Market Notice 118166
At 2005 hrs the Loy Yang PS No. 4 500 kV bus was returned to service.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
118166POWER SYSTEM EVENTS06/09/2024 12:38:00 PM
Non-credible contingency event - VIC region - 06/09/2024
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - VIC region - 06/09/2024
At 1222 hrs the Loy Yang PS No. 4 500 kV bus tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Non-credible contingency event - VIC region - 06/09/2024
At 1222 hrs the Loy Yang PS No. 4 500 kV bus tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
118145GENERAL NOTICE05/09/2024 10:06:25 AM
Fast Frequency Response Market - Removal of L1 FCAS dispatch cap from 9th September 2024
AEMO ELECTRICITY MARKET NOTICE
Following review of the operation of the Very Fast FCAS market, from 1300 hrs AEST on Monday 9th September AEMO will remove the 225 MW cap on dispatch of Very Fast Lower (L1) Contingency FCAS.
The 225 MW cap on dispatch of L1 FCAS sits well above typical disaptch volumes, and no immediate impact is expected from this change.
No other changes to the dispatch of Very Fast FCAS or FCAS constraint equation changes will be made on this date.
For information on the Fast Frequency Response (FFR) initiative please visit the website at: https://www.aemo.com.au/initiatives/major-programs/fast-frequency-response
Andrew Groom
AEMO Operations
Following review of the operation of the Very Fast FCAS market, from 1300 hrs AEST on Monday 9th September AEMO will remove the 225 MW cap on dispatch of Very Fast Lower (L1) Contingency FCAS.
The 225 MW cap on dispatch of L1 FCAS sits well above typical disaptch volumes, and no immediate impact is expected from this change.
No other changes to the dispatch of Very Fast FCAS or FCAS constraint equation changes will be made on this date.
For information on the Fast Frequency Response (FFR) initiative please visit the website at: https://www.aemo.com.au/initiatives/major-programs/fast-frequency-response
Andrew Groom
AEMO Operations
118037GENERAL NOTICE01/09/2024 09:29:36 PM
Network Augmentation Commissioned - NSW Region - 01/09/2024
AEMO ELECTRICITY MARKET NOTICE
Network Augmentation Commissioned - NSW Region - 01/09/2024
At 2125 hrs. Buronga -Redcliffs X9 220 kV line has been commissioned.
At 2125 hrs. Buronga -Redcliffs OX1 220 kV line has been de-commissioned.
Manager NEM Real Time Operations
Network Augmentation Commissioned - NSW Region - 01/09/2024
At 2125 hrs. Buronga -Redcliffs X9 220 kV line has been commissioned.
At 2125 hrs. Buronga -Redcliffs OX1 220 kV line has been de-commissioned.
Manager NEM Real Time Operations
117923GENERAL NOTICE28/08/2024 12:46:15 PM
QNI Minor testing (NSW to Qld) 28th August 2024
AEMO ELECTRICITY MARKET NOTICE
Refer to market notice 117650
There is an opportunity for testing QNI Minor for flows from NSW to Qld up to 850 MW on Wednesday 28th August 2024 from 1300 to 1700hrs.
This test includes a trip and reclose of a line in northern NSW.
Please also refer to the published formal QNI minor testing information at the following link:
https://www.aemo.com.au/consultations/current-and-closed-consultations/qld-to-nsw-interconnector-qni-upgrade
Ben Blake
AEMO Operations
Refer to market notice 117650
There is an opportunity for testing QNI Minor for flows from NSW to Qld up to 850 MW on Wednesday 28th August 2024 from 1300 to 1700hrs.
This test includes a trip and reclose of a line in northern NSW.
Please also refer to the published formal QNI minor testing information at the following link:
https://www.aemo.com.au/consultations/current-and-closed-consultations/qld-to-nsw-interconnector-qni-upgrade
Ben Blake
AEMO Operations
117909POWER SYSTEM EVENTS28/08/2024 02:17:12 AM
Update - Non-credible contingency event - VIC region - 28/08/2024
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - VIC region - 28/08/2024
Refer AEMO Electricity Market Notice 117908
At 0134 hrs the APD No 2 Potline was returned to service.
At 0200 hrs the APD No 1 Potline was returned to service.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
Update - Non-credible contingency event - VIC region - 28/08/2024
Refer AEMO Electricity Market Notice 117908
At 0134 hrs the APD No 2 Potline was returned to service.
At 0200 hrs the APD No 1 Potline was returned to service.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
117908POWER SYSTEM EVENTS28/08/2024 01:02:22 AM
Non-credible contingency event - VIC region - 28/08/2024
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - VIC region - 28/08/2024
At 0001 hrs the APD No1 Potline and the APD No 2 Potline tripped.
AEMO did not instruct load shedding.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Non-credible contingency event - VIC region - 28/08/2024
At 0001 hrs the APD No1 Potline and the APD No 2 Potline tripped.
AEMO did not instruct load shedding.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
117904GENERAL NOTICE27/08/2024 05:00:48 PM
Network Augmentation Commissioned - VIC Region - 27/08/2024
AEMO ELECTRICITY MARKET NOTICE
Network Augmentation Commissioned - VIC Region - 27/08/2024
Cressy - Golden Plains No. 1 220 kV Line has been commissioned.
Golden Plains Terminal Station has been commissioned.
Manager NEM Real Time Operations
Network Augmentation Commissioned - VIC Region - 27/08/2024
Cressy - Golden Plains No. 1 220 kV Line has been commissioned.
Golden Plains Terminal Station has been commissioned.
Manager NEM Real Time Operations
117783POWER SYSTEM EVENTS25/08/2024 10:33:54 AM
Update - Non-credible contingency event - TAS region - 25/08/2024
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - TAS region - 25/08/2024
Refer AEMO Electricity Market Notice 117782
At 1023 hrs the New Norfolk A 110kV Bus was returned to service.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
Update - Non-credible contingency event - TAS region - 25/08/2024
Refer AEMO Electricity Market Notice 117782
At 1023 hrs the New Norfolk A 110kV Bus was returned to service.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations